CN117794810A - Floating offshore platform for converting wind energy into electricity - Google Patents
Floating offshore platform for converting wind energy into electricity Download PDFInfo
- Publication number
- CN117794810A CN117794810A CN202280053518.4A CN202280053518A CN117794810A CN 117794810 A CN117794810 A CN 117794810A CN 202280053518 A CN202280053518 A CN 202280053518A CN 117794810 A CN117794810 A CN 117794810A
- Authority
- CN
- China
- Prior art keywords
- platform
- rotation
- sea
- base
- alternator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005611 electricity Effects 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 18
- 230000001419 dependent effect Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/4453—Floating structures carrying electric power plants for converting solar energy into electric energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/007—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with means for converting solar radiation into useful energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/708—Photoelectric means, i.e. photovoltaic or solar cells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/21—Rotors for wind turbines
- F05B2240/211—Rotors for wind turbines with vertical axis
- F05B2240/212—Rotors for wind turbines with vertical axis of the Darrieus type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/93—Mounting on supporting structures or systems on a structure floating on a liquid surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/95—Mounting on supporting structures or systems offshore
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/42—Storage of energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to a floating offshore platform (1) for converting wind energy into electricity by means of a wind turbine (6) of the darrieus type having a vertical axis and for converting solar energy into electricity by means of a plurality of photovoltaic modules (5) which also provide the electricity required for starting the wind turbine (6).
Description
Technical Field
The present invention is applied in the field of turbomachines (also known as "turbomachines"), i.e. in the field of fluid turbomachines adapted to convert kinetic and/or pressure energy of a fluid into mechanical energy (for example into rotation of a drive shaft about its axis).
The invention relates in particular to so-called "wind" turbines, i.e. turbines adapted to convert a large amount of movement of atmospheric air (i.e. an atmospheric air flow or "wind") into mechanical energy. Wind turbines are typically connected to an alternator by a drive shaft to convert mechanical energy into electrical power that the wind turbine converts from wind energy.
More precisely, the invention relates to wind turbines mounted on so-called "offshore" platforms, i.e. on floating platforms intended to be placed in open sea.
Background
Wind turbines currently installed on offshore platforms are turbines (turbines with a horizontal axis) with a horizontal axis, i.e. turbines provided with blades rotatable by wind around a horizontally arranged axis. It is known that said turbines are able to convert wind energy into mechanical energy only when the rotor is oriented in the direction of the wind blowing. In order for a wind turbine having a horizontal axis to always operate in windy conditions, it is therefore necessary to maintain the rotor oriented in the direction of wind correction. However, at sea, the wind direction is constantly changing. In order for a wind turbine mounted on an offshore platform with a horizontal axis to always operate in windy conditions, the rotor must be rotated repeatedly to maintain the rotor oriented in the direction of wind flow.
Disclosure of Invention
The object of the present invention is to overcome the aforementioned drawbacks by proposing an offshore platform comprising at least one wind turbine adapted to convert wind energy into mechanical energy, irrespective of the direction of the wind blow.
The present invention relates to an offshore platform, comprising:
a base on which the platform can be placed in the sea;
at least one wind turbine supported by the base,
the turbine comprises a rotor rotatable about an axis of rotation,
the turbine is adapted to convert wind energy at least partially into mechanical energy and more precisely into rotation of the rotor about the rotational axis;
at least one alternator connected to the rotor and adapted to convert rotation of the rotor about the rotation axis into electric power;
a power transmission device connected to the alternator and adapted to transfer power from the platform, wherein the alternator is adapted to transform the rotation of the rotor about the axis,
when the platform is placed at the base in the sea, the platform is adapted to float, such that the turbine is at least partly above the sea surface,
wherein, according to the invention, the turbine is of the "vertical axis" type,
the turbine is supported by the base such that when the platform is placed at the base in the sea, the rotation axis is vertically arranged, about which the rotor is rotatable, assuming that the free surface of the sea is flat and horizontally arranged.
Advantageously, unlike turbines having a horizontal axis, turbines having a vertical axis are adapted to convert wind energy into mechanical energy, irrespective of the direction of the wind. Thus, the turbine of the platform of the present invention is able to "accept" wind regardless of the direction of the wind. Furthermore, unlike wind turbines having a horizontal axis, the turbines do not require yaw angle control mechanisms nor speed multipliers. The smaller number of moving parts advantageously results in a more limited wear phenomenon compared to wind turbines with horizontal axes.
Other innovative features of the present invention are disclosed in the following description and are mentioned in the dependent claims.
According to an aspect of the invention, the turbine is of the "darrieus" type,
the rotor comprising a plurality of blades connected to a drive shaft and rotatable with the shaft about the axis of rotation,
the turbine is adapted to at least partially convert wind energy into rotation of both the blades and the shaft about the axis of rotation,
the shaft includes a first end and a second end opposite the first end,
the turbine being supported by the base such that the first end is closer to the base than the second end,
the shaft is connected to the alternator at the first end,
the shaft is connected to the alternator such that the alternator is adapted to convert rotation of the shaft about the rotational axis into electricity,
the platform further comprises:
a power storage device adapted to store electric power,
the electrical storage device is connected to the alternator for storing electrical power, wherein the alternator is adapted to convert rotation of the shaft about the rotational axis;
a rotation device connected to the shaft and adapted to rotate the shaft about the rotation axis,
the rotating means is electrically powered,
the electrical storage device is connected to the rotating device for supplying the rotating device with electric power by means of electric power stored in the electrical storage device.
Incidentally, since the known darrieus turbine is not self-starting, the presence of an electric storage device (e.g., an electric accumulator) and a rotating device (e.g., an electric motor) is necessary. By means of the electric motor, the rotor rotates at an increasing angular speed until the limit speed is reached, so as to allow the turbine to operate autonomously.
According to this aspect of the invention, the alternator is located close to the base. Thus, the centre of gravity of the platform of the invention is advantageously lower compared to current offshore platforms comprising wind turbines with horizontal axis. The lower center of gravity provides the platform with greater stability at sea. Because the alternator is close to the base, the alternator is more accessible and therefore easier to maintain than current offshore platform alternators for converting wind energy into electricity.
According to another aspect of the present invention, the power storage device and the rotating device are closer to the base than the second end portion.
According to this aspect of the invention, the accumulator and the electric motor are located as close to the base as the alternator. Thus, they advantageously help provide the platform with higher stability and easy accessibility when the platform is offshore.
According to another aspect of the invention, the base includes an upper wall,
when the platform is placed at the base in the sea, the platform is adapted to float, such that the upper wall is at least partly above the sea surface,
the platform comprises one or more photovoltaic modules (each of which comprises a plurality of photovoltaic cells) at the upper wall, so as to be adapted to convert solar energy into electricity when the platform is placed in the sea at the base,
the transmission device is connected to the one or more photovoltaic modules and adapted to transfer electrical power from the platform, wherein the one or more photovoltaic modules are adapted to convert solar energy.
Advantageously, according to this aspect of the invention, the offshore platform is able to distribute electrical power by converting not only wind energy into electrical power, but also solar energy into electrical power.
According to another aspect of the invention, the one or more photovoltaic modules are connected to the rotating device for providing power to the rotating device.
Advantageously, according to this aspect of the invention, the photovoltaic module can distribute the electrical power required to start the turbine.
According to another aspect of the invention, the electrical storage device is connected to the one or more photovoltaic modules for storing electrical power, wherein the one or more photovoltaic modules are adapted to convert solar energy.
According to another aspect of the invention, the one or more photovoltaic modules are not directly connected to the rotating device, but are connected to the rotating device only through the electrical storage device.
According to another aspect of the invention, the generated electric power exceeding the capacity of the electric storage device is directly transferred from the platform.
According to another aspect of the present invention, the transmission device is connected to the power storage device and adapted to transmit electric power stored in the power storage device from the platform.
According to another aspect of the invention, the transmission device is not directly connected to the alternator, but is connected to the alternator only through the power storage device.
According to an aspect of the invention, the platform comprises mooring means adapted to fix the base to a holding point in the sea (e.g. a mooring bar embedded in the sea bed) when the platform is placed at the base in the sea, so as to limit the freedom of movement of the platform in the sea.
Drawings
Further objects and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments thereof and the accompanying drawings, which are given by way of non-limiting illustration only, wherein:
figure 1 shows a perspective view of an offshore platform according to the invention;
figure 2 shows a side plan view of the platform in figure 1.
Detailed Description
In the following of the present description, the drawings may also be shown with reference to elements not explicitly indicated in the drawing but indicated in other drawings. The scales and proportions of the various elements depicted do not necessarily correspond to actual values.
Fig. 1 and 2 show an offshore platform 1 according to the invention, said platform comprising a foundation 2, at which the platform 1 can be placed in open sea. The base 2 is preferably in the shape of a right prism with a regular octagonal bottom and preferably comprises a plurality of metal tubular elements 3 with a preferably quadrangular cross section. The metal tubular elements 3 are preferably connected to each other at their ends in order to obtain a lattice structure. With reference to the base 2, which is preferably and substantially shaped as a straight prism, the distance between the lower and upper bases of the straight prism (corresponding to the height of the base 2) is preferably four meters.
The base 2 is preferably floating and can be placed in the sea at the bottom of the aforementioned right prism, preferably in the shape of a regular octagon. More preferably, when the foundation 2 is placed in the sea, it floats such that the upper wall 4 of the foundation, corresponding to the upper base of the aforesaid straight prism (also preferably regular octagon), is at least partially above the sea surface. Even more preferably, the base 2 is ballasted so as to submerge about three-quarters of its height (i.e., preferably about three meters) when it is placed in the sea.
The base 2 preferably comprises one or more photovoltaic modules 5. The one or more photovoltaic modules are preferably mounted at the wall 4, preferably so as to cover almost the entire extension of the wall. Incidentally, as shown in fig. 1, the module 5 is mounted at the wall 4 such that when the base 2 is placed in the sea, the "conversion surface" of the photovoltaic cells included in the module 5 faces upward. The module 5 is thus mounted at the wall 4 so as to be suitable for converting solar energy into electricity when the base 2 is placed in the sea.
The platform 1 comprises at least one wind turbine 6 of the "vertical axis" type, preferably the "Darrieus" type. The turbine 6 is preferably supported by the base 2 such that the turbine 6 is at least partially and preferably completely exposed to the sea surface when the base 2 is placed in the sea (i.e. when the platform 1 is placed at the base 2 in the sea). The turbine 6 comprises a rotor 7 rotatable about an axis of rotation. The turbine 6 is preferably supported by the base 2 such that when the base 2 is placed in the sea, the rotor 7 is arranged vertically about said axis of rotation about which it is rotatable, assuming that the free surface of the sea is flat and horizontally arranged. The rotor 7 comprises a plurality of blades 8, preferably of the "curved" type, for example equal to three in number and integrally connected to a drive shaft 9. The blades 8 and the shaft 9 are rotatable about the aforementioned rotation axis of the rotor 7. The shaft 9 is preferably parallel to said axis of rotation. More preferably, said rotation axis corresponds to the longitudinal symmetry axis of the shaft 9. The shaft comprises a first end 10 (shown at the bottom in the figure) and a second end 11 (shown at the top in the figure) opposite the end 10. The shaft 9 is preferably arranged orthogonal to the wall 4, wherein the end 10 is closer to the base 2 than the end 11.
The turbine 6 is adapted to at least partly convert wind energy into rotation of the rotor 7 about the aforementioned rotation axis, i.e. into rotation of the blades 8 and the shaft 9 about the aforementioned rotation axis. Wind turbines of the darrieus type having a vertical axis are known. Therefore, no further details will be provided.
The platform 1 comprises an alternator 12 connected to the rotor 7 and adapted to convert the rotation of the rotor 7 about the aforementioned rotation axis into electricity. More precisely, the shaft 9 is a shaft connected at an end 10 to an alternator 12, so that the alternator 12 is adapted to convert the rotation of the shaft 9 about the aforementioned rotation axis into electricity. Since the wind turbines of the darrieus type having a vertical axis are not self-starting, the platform 1 also comprises an electric motor connected to the shaft 9 by means of keys, so as to be suitable for rotating the shaft about the aforementioned rotation axis. The engine is powered by electricity stored in an accumulator, which is also included in the platform 1. The accumulator is connected to an alternator 12 for storing electric power, wherein the alternator 12 is adapted to convert a rotation of said shaft 9 about the above-mentioned rotation axis. The accumulator is preferably also connected to the module 5 for electric power storage, wherein the module 5 is adapted to convert solar energy.
When the turbine 6 is started, the shaft 9 is rotated by the aforementioned electric motor, so that it is supplied with electricity by means of the electric power previously stored in the accumulator. The previously stored electric power may be stored in the accumulator when the accumulator is mounted in the platform 1, or the electric power may be generated by the module 5. After start-up, the accumulator is recharged by the alternator 12 and/or by the module 5. As an alternative or attachment to an accumulator, the module may also be connected "directly" to an electric motor for powering the electric motor. In other words, the module 5 is connected to the electric motor directly and/or through an accumulator.
The motor and accumulator are preferably placed close to the base 2, i.e. at a position of the base 2 closer to the end 11, and more preferably also close to the base of the end 10.
The platform 1 comprises an electric power transmission system connected to the accumulator and/or directly to the alternator 12, to transmit the electric power stored in the accumulator from the platform 1 and/or to convert the mechanical energy of the rotor 7 into electric power by the alternator 12. The transmission system is also connected to the module 5 to transmit electricity from the platform 1, which is converted from solar energy by the module 5. In other words, the power transmission system is connected to the alternator 12 directly and/or through an accumulator. Similarly, the power transmission system is connected to the module 5 directly and/or via an accumulator.
The platform 1 preferably comprises a suitable mooring system adapted to fix the base 2 to a holding point in the sea (e.g. a mooring bar embedded in the seabed) when the platform 1 is placed in the sea, so as to limit the freedom of movement of the platform 1 in the sea.
The platform 1 may preferably be placed in a wind farm comprising a plurality of platforms 1 interconnected by means of a plurality of cables, so that the power generated by the platforms 1 worldwide may be transmitted by means of a single submarine cable to a substation on land, for example.
Based on the description of the preferred embodiments, it is obvious that a person skilled in the art may introduce some variations without departing from the scope of the invention as defined by the appended claims.
Claim (modification according to treaty 19)
1. An offshore platform (1), the platform comprising:
-a base (2) at which the platform (1) can be placed in the sea;
at least one wind turbine (6) supported by the foundation (2),
the wind turbine (6) comprises a rotor (7) rotatable about an axis of rotation,
-the wind turbine (6) is adapted to at least partially convert wind energy into a rotation of the rotor (7) about the rotation axis;
-at least one alternator (12) connected to the rotor (7) and adapted to convert rotation of the rotor (7) about the rotation axis into electric power;
-power transmission means connected to the alternator (12) and adapted to transfer power from the platform (1), wherein the alternator (12) is adapted to transform the rotation of the rotor (7) about the rotation axis,
when the platform (1) is placed at the base (2) in the sea, the platform (1) is adapted to float such that the wind turbine (6) is at least partly above the sea surface,
the wind turbine (6) is "vertical axis" and is supported by the foundation (2) such that when the platform (1) is placed at the foundation (2) in the sea, the rotation axis is arranged vertically, the rotor (7) being rotatable around the rotation axis, assuming that the free surface of the sea is flat and horizontally arranged,
the wind turbine (6) is of the "Darlie" type,
the rotor (7) comprises a plurality of blades (8) connected to a drive shaft (9) and rotatable together with the drive shaft (9) about the axis of rotation,
the wind turbine (6) is adapted to at least partially convert wind energy into rotation of both the blades (8) and the drive shaft (9) about the axis of rotation,
the drive shaft (9) comprises a first end (10) and a second end (11) opposite the first end (10),
the wind turbine (6) is supported by the base (2) such that the first end (10) is closer to the base (2) than the second end (11),
the drive shaft (9) is connected to the alternator (12) at the first end (10),
the drive shaft (9) is connected to the alternator (12) such that the alternator (12) is adapted to convert rotation of the drive shaft (9) about the rotation axis into electricity,
the platform (1) further comprises:
a power storage device adapted to store electric power,
the electrical storage device is connected to the alternator (12) for storing electrical power, wherein the alternator (12) is adapted to convert rotation of the drive shaft (9) about the rotation axis;
-rotation means connected to the transmission shaft (9) and adapted to rotate the shaft about the rotation axis,
the rotating means is electrically powered,
the electrical storage device is connected to the rotating device for supplying the rotating device with electric power by means of electric power stored in the electrical storage device,
the base (2) comprises an upper wall (4),
when the platform (1) is placed at the base (2) in the sea, the platform (1) is adapted to float such that the upper wall (4) is at least partly above the sea surface,
the platform (1) comprises one or more photovoltaic modules (5) at the upper wall (4) so as to be adapted to convert solar energy into electricity when the platform (1) is placed at the base (2) in the sea,
said transmission means being connected to said one or more photovoltaic modules (5) and being adapted to transfer electric power from said platform (1), wherein said one or more photovoltaic modules (5) are adapted to convert solar energy,
the platform (1) is characterized in that the one or more photovoltaic modules (5) are connected to the rotating means for providing power to the rotating means.
2. Platform (1) according to claim 1, characterized in that said electrical storage means and said rotation means are closer to said base (2) than said second end (11).
3. Platform (1) according to claim 1, characterized in that the electrical storage device is connected to the one or more photovoltaic modules (5) for storing electrical power, wherein the one or more photovoltaic modules (5) are adapted to convert solar energy.
4. A platform (1) according to claim 3, characterized in that the one or more photovoltaic modules (5) are connected to the rotating device only through the electrical storage device.
5. Platform (1) according to one of the preceding claims, characterized in that said transmission means are connected to said electrical storage means and are adapted to transmit from said platform (1) the electrical power stored in said electrical storage means.
6. Platform (1) according to claim 5, characterized in that said transmission means are connected to said alternator (12) only through said electrical storage means.
7. Platform (1) according to one of the preceding claims, characterized in that it comprises mooring means adapted to fix the foundation (2) to a holding point in the sea when the platform (1) is placed at the foundation (2) in the sea.
Claims (10)
1. An offshore platform (1), the platform comprising:
-a base (2) at which the platform (1) can be placed in the sea;
at least one wind turbine (6) supported by the foundation (2),
the wind turbine (6) comprises a rotor (7) rotatable about an axis of rotation,
-the wind turbine (6) is adapted to at least partially convert wind energy into a rotation of the rotor (7) about the rotation axis;
-at least one alternator (12) connected to the rotor (7) and adapted to convert rotation of the rotor (7) about the rotation axis into electric power;
-power transmission means connected to the alternator (12) and adapted to transfer power from the platform (1), wherein the alternator (12) is adapted to transform the rotation of the rotor (7) about the rotation axis,
when the platform (1) is placed at the base (2) in the sea, the platform (1) is adapted to float such that the wind turbine (6) is at least partly above the sea surface,
the platform (1) is characterized in that the wind turbine (6) is a 'vertical axis',
the wind turbine (6) is supported by the base (2) such that when the platform (1) is placed at the base (2) in the sea, the rotation axis is vertically arranged, the rotor (7) being rotatable around the rotation axis, assuming a flat and horizontal arrangement of the free surface of the sea.
2. Platform (1) according to claim 1, characterized in that said wind turbine (6) is of the "darrieus" type,
the rotor (7) comprises a plurality of blades (8) connected to a drive shaft (9) and rotatable together with the drive shaft (9) about the axis of rotation,
the wind turbine (6) is adapted to at least partially convert wind energy into rotation of both the blades (8) and the drive shaft (9) about the axis of rotation,
the drive shaft (9) comprises a first end (10) and a second end (11) opposite the first end (10),
the wind turbine (6) is supported by the base (2) such that the first end (10) is closer to the base (2) than the second end (11),
the drive shaft (9) is connected to the alternator (12) at the first end (10),
the drive shaft (9) is connected to the alternator (12) such that the alternator (12) is adapted to convert rotation of the drive shaft (9) about the rotation axis into electricity,
the platform (1) further comprises:
a power storage device adapted to store electric power,
the electrical storage device is connected to the alternator (12) for storing electrical power, wherein the alternator (12) is adapted to convert rotation of the drive shaft (9) about the rotation axis;
-rotation means connected to the transmission shaft (9) and adapted to rotate the shaft about the rotation axis,
the rotating means is electrically powered,
the electrical storage device is connected to the rotating device for supplying the rotating device with electric power by means of electric power stored in the electrical storage device.
3. Platform (1) according to claim 2, characterized in that said electrical storage means and said rotation means are closer to said base (2) than said second end (11).
4. Platform (1) according to one of the preceding claims, characterized in that said base (2) comprises an upper wall (4),
when the platform (1) is placed at the base (2) in the sea, the platform (1) is adapted to float such that the upper wall (4) is at least partly above the sea surface,
the platform (1) comprises one or more photovoltaic modules (5) at the upper wall (4) so as to be adapted to convert solar energy into electricity when the platform (1) is placed at the base (2) in the sea,
the transmission device is connected to the one or more photovoltaic modules (5) and adapted to transfer electrical power from the platform (1), wherein the one or more photovoltaic modules (5) are adapted to convert solar energy.
5. A platform (1) according to claim 4 when dependent on claim 2 or 3, wherein the one or more photovoltaic modules (5) are connected to the rotating means for providing power thereto.
6. Platform (1) according to claim 5, characterized in that the electrical storage device is connected to the one or more photovoltaic modules (5) for storing electrical power, wherein the one or more photovoltaic modules (5) are adapted to convert solar energy.
7. Platform (1) according to claim 6, characterized in that said one or more photovoltaic modules (5) are connected to said rotating means only through said electrical storage means.
8. Platform (1) according to one of claims 2 to 7, characterized in that said transmission means are connected to said electrical storage means and are adapted to transmit from said platform (1) the electrical power stored in said electrical storage means.
9. Platform (1) according to claim 8, characterized in that said transmission means are connected to said alternator (12) only through said electrical storage means.
10. Platform (1) according to one of the preceding claims, characterized in that it comprises mooring means adapted to fix the foundation (2) to a holding point in the sea when the platform (1) is placed at the foundation (2) in the sea.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102021000021116 | 2021-08-04 | ||
| IT102021000021116A IT202100021116A1 (en) | 2021-08-04 | 2021-08-04 | Floating offshore platform for converting wind energy into electricity |
| PCT/IT2022/050130 WO2023012840A1 (en) | 2021-08-04 | 2022-05-17 | Floating offshore platform for converting wind energy into electricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117794810A true CN117794810A (en) | 2024-03-29 |
Family
ID=78649623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202280053518.4A Pending CN117794810A (en) | 2021-08-04 | 2022-05-17 | Floating offshore platform for converting wind energy into electricity |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN117794810A (en) |
| IT (1) | IT202100021116A1 (en) |
| WO (1) | WO2023012840A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10064472A1 (en) * | 2000-12-15 | 2002-06-20 | Gerhard Brandl | Wind and wave buoy uses energy of wind, waves and sunlight simultaneously on one device for generation of renewable energy, has Darrius wind wheel mounted on top of buoy |
| EP2302205A1 (en) * | 2009-09-29 | 2011-03-30 | The Monobuoy Company Ltd. | Floating power plant comprising water turbine and wind turbine |
| WO2018178120A1 (en) * | 2017-03-27 | 2018-10-04 | Elemental Engineering Ag | Vertical axis wind turbine generator |
| CN110050740B (en) * | 2019-04-28 | 2023-09-19 | 清华大学深圳研究生院 | Deep-open sea floating wind, light and fish comprehensive equipment |
| CN110374810B (en) * | 2019-07-24 | 2021-03-26 | 大连海事大学 | Self-energy-supply marine charging pile |
-
2021
- 2021-08-04 IT IT102021000021116A patent/IT202100021116A1/en unknown
-
2022
- 2022-05-17 WO PCT/IT2022/050130 patent/WO2023012840A1/en active Application Filing
- 2022-05-17 CN CN202280053518.4A patent/CN117794810A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IT202100021116A1 (en) | 2023-02-04 |
| WO2023012840A1 (en) | 2023-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7215036B1 (en) | Current power generator | |
| US7319278B2 (en) | Ocean wave generation | |
| US9598758B2 (en) | Vertical axis wind turbine | |
| US4266143A (en) | Apparatus for producing electrical energy from ocean waves | |
| JP5892941B2 (en) | Ocean driven energy plant | |
| US20100107627A1 (en) | Buoyancy energy storage and energy generation system | |
| CN109072877B (en) | Renewable energy barge | |
| US20080211231A1 (en) | Ocean Wave Energy Converter (Owec) | |
| KR20120101024A (en) | Wind turbine comprising a battery arrangement, and method for cooling the battery arrangement | |
| WO2010107316A1 (en) | Aquatic turbine apparatus | |
| CN112761855A (en) | Structure and method for generating power by using seawater tidal energy | |
| KR20120065820A (en) | Device for generating hybrid-recycling energy and device for measuring of that | |
| CN117794810A (en) | Floating offshore platform for converting wind energy into electricity | |
| EP4123169A1 (en) | Wind turbine with electrolytic unit housed inside the tower | |
| EP4380851A1 (en) | Floating offshore platform for converting wind energy into electricity | |
| CN108061013A (en) | Portable sea complex energy transformation platform | |
| GB2546252A (en) | Floating wind turbine | |
| KR102427102B1 (en) | A tidal power generator and tidal power generation system in deep water | |
| TWM624653U (en) | Ocean current power generation device | |
| CN115539313A (en) | Carry on semi-submerged formula hull of marine turbogenerator | |
| KR20130048852A (en) | Sea floating wind turbine apparatus for generating electricity | |
| Ritschel | 1 Technology of Offshore Wind Energy Turbines: Current Status and Developments |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |